Bolt and screw retainer.



E. R. LE MANQUAIS. BOLT AND SCREW RETAINER. APPLICATION FILED NOV. 9 1911.

' 11,049,376; Patented Ja11.7,1913- F|E-El.

WITNESSES:

- Q Lklmvzwron.

ITED s'r 'r s PATENT onnrcn.

ERNEST '3. LE MANQUAIS, OF FAIROAKS, PENNSYLVANIA, ASSIGNOB TO NATIONAL METAL MOLDING COMPANY OF PITTSBURGH, PENNSYLVANIA,

OF PENNSYLVANIA.

A CORPORATION v BOLT mi) scnnw RETAINER.

the securing of various objects (such, for ex ample,. as electricalconduits) to tiled or plastered walls o' 'surfaces; and the object of" the invention is to provide 'a-fsimple, cheap. and efiicientretazining member for bolts or" screws usedfor'securinglsuch-objects' to such surfaces. I Z, I

My invention i illustrated in the accompanying drawing, hich forms partot' the specification, and;-m"which-- Figure 1 is azi'enlarged ,yv of the re tainer; Fig. 295s ihebla'nk fromwhich the retainer maybe formed;.- and Fig.3 shows an embodiment of my inventioiiz,

Like numerals are usedto designate like parts.

The retainer, WhiChisPorticuIarly shown in Fig. ,1, is formed of a single piece of sheet-metal, which before it has been pressed into the form of a retainer maybe of the form shown in" Fig. 2. The blank is con verted into-the form of the retainer by a suitable metal-pressing or stamping machine, the retainer so formed consisting of an annular sleeve 3 and integral tines or .arms

4, particularly shown in Fig. 1. The hole 1 and the strip-like extensions 2 of the blank, form the end of the sleeve 3 and the tines 4,

respectively; of 'the finished retainer; and

the material adjacent to the hole 1 forms the body of the sleevej3. The blank is so cut,

and the retainer is so formed from the blanlg.

that the tines 4 may normally diverge from the sleeve 3, but may, by being pressed together, come within'a cylindrical space the diameter of which'will not exceed that of the sleeve 3. It will be understood that, when the tines are pressed inwardly, they continuously exert an outward pressure owing to-the resiliency of the sheet metal.

I Specification ofrLetters Batent. Application filed Novembrb, 1911. Serial No. 659,416.

Patel wu J an. 51, 1:11;.

i In Fig. 3'the retainer is shown as applied to a screw used for holding a conduit-section to a tile or plaster surface. then employed for such purpose, the retainer 5 may be screwed upon the end of the screw 6, and the screw with the retainer may be forced through the'holes in the conduit-section 7 and the tile or plaster 8 until the outer ends of the tines *1 shall have passed beyond the inner surface of the tile or plaster 8, which position of the retainer is indicated in Fig.

3. It will beunderstood that, as soon as the retainer is in such a position the tines .4,

which (while the retainer is passing through the tile 8) are held yieldingly against the sides of the screw 6, spring outwardly, and their ends abut against the interior surface of. the tile. A turning of the screw 6 may then be effective to securely attach the conduit to thetile or plastered surface.

I do not Wish to limit myself to the details of construction of lny retainer or to the specific uses illustrated, tor obviously many changes as to detail and use may be made by those'skilled in the art without departing from the spirit of my invention.

I claimthe followingz' 1. A retainer for bolts or screws, consisting of an internally-threaded sleeve provided' wi th integrally formed outwardly diverging spring arms projecting from one edge of the sleeve, the outer ends of the said arms being freennd adapted to abut against a support.

2. The combination with a bolt or screw,

of a retainer consisting of an i-nternallythreaded sleeve mounted on the shank of the boltor screw, and having integrally formed spring arms divergingly projecting from the edgeof the sleeve inthe direction of the head of said bolt or screw.

ERNEST R. LE MANQUAIS.

Witnesses:

PAUL N. Cnrronnow, I ALICE A. TRIM... 

